/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlet;

import DTO.song.Songs;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import utils.VietnameseConvert;
import xmlutils.SearchUtils;
import xmlutils.XMLGenerator;

/**
 *
 * @author NoiR
 */
public class AjaxSearchServlet extends HttpServlet {

    private SearchUtils su = null;
    private XMLGenerator generator = null;

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            String action = request.getParameter("action");
            String query = request.getParameter("query");

            if ("search".equals(action)) {
                VietnameseConvert c = new VietnameseConvert();
                query = c.toStringNoAccent(query).toLowerCase().trim();
                Songs rs = new Songs();
                String realPath = getServletContext().getRealPath("/");

                su = new SearchUtils();
                rs = su.seachSong(realPath, query);

                JAXBContext ctx = JAXBContext.newInstance(rs.getClass());
                Marshaller mar = ctx.createMarshaller();
                mar.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");
                mar.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);

                response.setContentType("text/xml");
                response.setCharacterEncoding("UTF-8");
                mar.marshal(rs, out);

                // response.sendRedirect("search.jsp");
            }
        } catch (JAXBException ex) {
            Logger.getLogger(AjaxSearchServlet.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
